Bucket elevator



G. E. MOYER BUCKET ELEVATOR 3 Sheets-Sheet 1 Filed Feb. 24, 1947 JNVENTOR G'. E'. Moyer HTTYS Aug- 9, 1949. G. E. MOYER 2,478,302

y BUCKET4 ELEVATOR Filed Feb. 24, 1947 3 Sheets-Sheet 2 Eug. z

` y 9 INVENTOR. l I C7. E'. Mo ger 9 fn- /1 ug. 9, 1949. G. E. MoYl-:Rl 2,478,302

BUCKET ELEVATOR Filed Feb. 24, 1947 :5 sheets-sheet s Patented Aug. 9, 1949 BLLQESET ELEYA'IQR 'GeQrge-'Ernest Mayer, AlturasfCalifi. Avrlieeitieiaeebiiiiaxy 24 lilileriei lialiiflf 6 cla-img. (Criss-140i y ThisA inventionrepresents improvementsmirr ;abuclget'elevatqrpornprisesza pluralityofrelatiyely bucket `elevaicir for, carrying end eleveiirig .lease deeeleeeleeie .l 'hiieeieeeilierei .edileeeiiteede materia such as mcaerayei., sana ete.; iiiaeleee iiifieei si 1 generally eiil and i Wllieh hiii'ee veter beine f the, type whieh ,comprises .a plueeeembli. hee ...efierCleeerlbedlegdlellfo ieliiy of buckets Ahinged,together eeen .eiidlleeev 5 feiiiiieefefielleeei ,articulated Clieln,.eef1l.e?l ;eli. G'QD chain which is supported at its Luppeiyarid `lovver ariel lootterrl"ployY transverselylspagedjsproqlie'te endsbymairsnf sprockets7 atleast one .pairof .ai'idj3a`, resrpect`iye1y. See` Fig. 8.; At leaetprie which is driven. pair off"sprocketsis i:lgz'iven.A

O ne object of theipresent Vinvention isto yform Eachbuolgetgiiincludee transversely Spaeginside the buckets rand .tohingethesame ztqgelheln 10ip1ates 4-connected -byopposed `front arielY bak amanner which effectively,prevents.aeeessron walls. 5 andulmerging at adjacenterfds,` in va foreign substances fromihe bueketejio iliehiriee "belliedbeek Dertien lwhiell"lfieeeeesilliellelelel support and drive` thebuketkelevator. InLthis ariioeiiv Asomewhatdiagonal tothe path of marmer Wear fend riemergere,therabove. working., mOVemeritWherebi/,tlie 'leveke .lnelneSilPrv'e-irlly parts is materially reduced, avoiding the necessity tOWaIdflllS Gilgen 'erid'when' raYelIig inthevipof,.frequent repair or; repllacementrthereof. ivardig'f.rricgving:l run ofi-the elevator. "See Ffigfs.l 1

Another, object voifthe invention kistoprovide Vand 3c 1fdesiredfacutting-lip orldiggingteeth abuCReteIeVaiOr, aS-inihepreeeding peieereph, maybe applied le the lliJ ollheffrell'elf'l-ibblilm in Whieiiihef-bucleets.araformeaandfeeoperete-rWell5f Saas to. mechanically; shroiid, .aiideiiard thetpellleriiiedieeetlieinnerand @liter @Sleee llleieaf, ripherei `portions of, meeneem@ Whieliereiii eeeh Side plete le feimedlenehwlse .theleefrf @51d engagement withthe. buckets.- `ff:0,H-erl1dito enclf'wiiiha laterally outwardly exmay` be removed and replacedfafter. normal SdeSO'eelCh ofthe buckets Wear- Withqut rpglgg Suchy hinger` pinsl At-adacnt `(I'ldS 'Of "the Channels lg adjacent bushingsdami hinge. pins 159,41 ifwom, are easily 30 buckets are-formed with Vcooperating-male'aid repiaceabr1efemale -ear wuriitsy yinclicatedfgenerallyfat"l fard A further Object Igj thevmventon l.is1,0: plpyiyge 21; respectively; suchear unitsbeingeconstructed apractical bucketelevator, and `-one..WhicnQwill anel'ihiiigeetegether ag follows: 7 be 4exceedingly effectivefonthe. purposefory 4wifiich Eah'mafle e'lllit; 'H is fQfmed onf one end it designgif of a corresponding channel l0* andeinclucles'fa These Objects am @compuShed*by4 meangyof `I transvereelv spaedfpair of-'ears- IS'ivniohepm- .Such Siructureand relative.arrangement@;parte mise longitudinal extellsoins 0f" ORPPSleJslSl-@S as will fuliyappear, bvaperiiselief Athaiclimi/ine Seide @ll-afmek Specification and v c1fkims Each female ear unithl Zaissimil-'ariy formedbut Inmthedrawfings; 40 Ourthe-opposite-end of thecorrespondinglchannel Fig; 1 is asideelevationof a. sectior1o-ftif1 e -andicereprises.:a` pair'lofears MPOBCK-IVOIL- Ibuckvetelevator asengagediwithasprplget. -tiidinaiii7A` fromanniI beyond the" sides offad Fig. 2 is a longitudinal sectiqrirojoneihuletgon Channel? 1in@` z gf y 4, The bueketsare thusvarrangedwith a malelar Fig. 3 is a similar view on line 3-3 of Fig. 4. `V4.5 unifi' l; 3nd' ai; femalq ein uijijgfl;I in Fie. 4 is a-creseiseeiiienaEmail-4 0f Fig- 1- Hide eahcllelmel |011" lille;edieeerilflile-eld Fig. 5 is a cross section op line 5 5 of Fig, 2. femaleear iiriiteofgeridA tqeiiwikets, engaging Fig. nisa fragmentary longitudinalisectionlon tOgfetheI Vi/.ili theniale eare; 13x; irivsiadlvifitfie une s-s of Fig. 5. vfeii'ieiie .eers Vles Sherrill. Leierall'iliiwarrtfrael Fie. 'I ieafregmeataryiplan'viewroifone 0f the, 50 'eah'me'le ea1"'l1nll lli edleeeiii'iele. Wellens femalemear units of a detached bucket. pocketednasat"l5*tg,nerrriitntiieadjaentfemale Fia e is e fragmentary. elevation oiihaeomear.l 4i-io.. feweeiii eine 'iiieneaaemeiii pletabueket elevatonernewhat diearaiiiiiietiewith l'lieeeerreeeeiiiiiriamale eet-lt 4' Referring now more particularly to thecharac- ^A transversely" tubular housing I6 extends beters of reference on the drawings, the improved tween the male ear units Il in the plane of the 3 wall 5 of each bucket, and includes bushings I1 whose bore alines with holes I8 and I9 in the ears I3 and I 4 of the cooperating male and female ear units I I and I2, respectively.

A hinge pin 20 extends through the bushing I1, and through both pairs of cooperating male and female ear units at adjacent ends of the buckets, hinging the latter together. Cross pins 2 I, retained in seats 22 on the outside female ears I4, prevent rotation and axial displacement of each hinge pin 20.

Removable bearing sleeves 23 are disposed on each hinge pin between, and engaged through, the ears I3 of each male ear unit II each such bearing sleeve being affixed at its outer end to a radial locking plate 25 removably secured to the adjacent ear I3 by a cap screw or rivet 26. The outside ears I4 are offset outwardly suiciently to permit the locking plates 25 to engage lbetween said ears I4 and the adjacent ears I3.

By reason of the described arrangement the bearing sleeves 23 traverse the cooperating ear units adjacent the ends of the channels I0, and, as supported by the pins 20, are driven by engagement with the teeth 21 of the sprockets 3 and 3a. Between the bearing sleeves 23 the peripheral portions of the sprockets 3 run in and are shrouded or guarded by Said channels I0 to prevent access of foreign substance to said sprockets.

Access of any such foreign substance to the sprocket teeth 21 and to the engaged bearing sleeves 23 from the buckets and through the cooperating hinged ear units I I and I2 is prevented by lapping arcuate lips 28 and 29 on said units between the ears thereof; such lips being concentric to the corresponding pin 20, and of a length to always remain in such lapped relation.

A projecting stop 30 on one ear I3 of each male.;

ear unit II engages in a longitudinal slot 3| vrin the lip 30 of the adjacent lip 29 of the corresponding female ear unit I2 so as to prevent inwardly buckling of the adjacent buckets of the chain beyond dead center when free of the sprockets.

Spillage from the buckets at the back, and over the edge 32 of the back walls E cannot occur because said edge terminates close to the tubular housing I6 and traverses a concentric path upon relative hinging between buckets. See Fig. 6.

It will thus be seen that the hinge assemblies of adjacent buckets, and the working portions of the sprockets 3 are effectively shielded against access of material from the buckets.

For stiffening and protecting the buckets, flanges 33 extend from the end walls 5 at opposite ends thereof; said flanges actually being continuations of the side plates 4.

Further strengthening is accomplished, when the bucket is wide, by a, central longitudinal partition 34 in each bucket, which partition includes an ear 35 at one end which enters a pocket 36 in the adjacent bucket and intersects the tubular housing I B and bushing Il thereof for .support on the cross pin 20 intermediate its ends.

placeable; said bushings being preferably slotted and engaged by a projection of Wall I entering 4 the bushing bore, as shown in Fig. 3. This prevents undesired rotation of the bushings.

From the foregoing description it will be readily seen that there has been produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described the invention, the following is claimed as new and useful and upon which Letters Patent is desired:

1. A bucket elevator comprising a plurality of buckets, the end plates of each bucket being offset intermediate their inner and outer edges, a skirt projecting from along the outer edge of each of the offsets whereby to form channels between the skirts and the sides of the bucket, a pair of spaced apart ears adjacent one end of each channel, and another pair of spaced apart ears adjacent the other end of each channel, the ears on one end of the channel on one bucket matchingly engaging the ears on the opposite end of the channel on an adjacent bucket, said matching ears having co-axial boi es, the spacing between the ears forming a continuation of the channels from bucket to bucket, and a bearing pin journaled in the bores and projecting transversely across thechannels.

2. A structure as in claim 1 including bearing sleeves about the pin, such sleeves being removably supported between the matchingly engaged ear-s.

3. A structure as in claim 2 in which the supporting means for the sleeves comprises a locking plate on one end of the sleeve, said plate being detachably xed to one of the ears.

4. A structure as in claim l, including a tubular housing formed in one wall of the bucket co-axially with the bores in the ears, the bearing pin being journaled within said housing.

5. A structure as in claim 1 including an arcuate lip at the end of each channel, the curve of the lips being concentric with the axis of the pin, the lips at the ends of the channels in one bucket continuously overlapping the lips at the ends of the channels in adjacent buckets,

6. A structure as in claim l in which the buckets each consist of transversely spaced side plates and opposed front and back Walls merging together at their rear edges, a tubular housing formed in the front wall co-axially with the bores in the ears and having its outer surface projecting beyond the faces of the wall, the pin being journaled in the housing, the outer edge of the back wall of one bucket terminating immediately adjacent the outer surface of the vhousing on the adjacent bucket and swinging concentrically of the same with relative vhinging movement between the buckets.

GEORGE ERNEST MOYER.

REFERENCES CITED j The following references are of record in the Number Name 34.1,2'7'7 Robinson May 4, 1886 1,854,334 Jensen et al Apr. 19, 1932 

